226 MR. O. A. L. MORCII ON THE GENERA [Nov. 1], 



Australia are generally darker in colour, and have the hands more di- 

 stinctly marked, than those found in Victoria and New South Wales. 



HoplocepJialus superbus is not found in New South Wales. 

 It is perhaps only a variety of H. curtiis. 



Hoplocephalus nigrescens. — A rare Snake. The few specimens I 

 found of this species were all captured at Middle Harbour, an inlet 

 of Port Jackson. I have never seen it from other parts of Austraha. 



Hoplocephalus temporalis I captured, more than two years ago, at 

 Port Lincoln, South Australia. I have also seen specimens from 

 Albany, King George's Sound. No doubt a great many more species 

 of this extensive genus will be discovered ; in fact, I know of three 

 new ones already, which will be described shortly. 



Pseudechis porphyriacus. — Inhabits the greater part of the conti- 

 nent in the north. The brown variety, with bright yellow or orange 

 belly, is the most common. On the Lower Murray both varieties 

 occur. 



Pseudonaia nuchalis. — Common near Sydney, on the Hunter and 

 Clarence Rivers. 



Brachysoma diadema is also an inhabitant of this neighbourhood, 

 and is frequently captured in the northern part of New South Wales 

 and in Queensland. 



Vermicella annulata. — Rarely obtained in this neighbourhood — ■ 

 I suspect, on account of its nocturnal habits. Found on the east 

 coast, from Twofold Bay to Brisbane, and no doubt ranges still fur- 

 ther north. 



4, On the Genera of Mollusca established by II. F. Link 

 IN the Catalogue of the Rostock Museum. By O. A. 

 L. Morch. 



In the * Proceedings of the Zoological Society' for the year 1851 

 there is an abstract of the Catalogue of the Rostock Museum, by 

 the late Dr. Herrmannsen, the continuation of which was prevented 

 by his early death. Of the work, which appeared as a University 

 program, only a few copies comparatively were distributed, the greater 

 number having been preserved in the stores of the University. 

 Oken appears to be the only naturalist who had any acquaintance 

 with the work until it was mentioned in the ' Index Malacozoorum.' 



The second part, containing the Mollusca, appeared on the 29th 

 March 1807. 



Lituina, Link, p. 84, is estabhsheduponiWa^^z'te spinda, L. ; Mar- 

 tini, i. t. 20. figs. 184, 185. 

 Ammonia, Breyn, has the priority. 



The Gasteropoda are divided into three sections— 



1 . DipJionobrajiehii, with a notch in the fore part of the aper- 

 ture, corresponding to Lamarck's ZoopJiaga. 



2. Adelobranchii, corresponding to Lam.arck's Phytophaga. 



3. I>ermohranc1iii, containing the non-spiral shells, as Calyp- 

 trcea, Patella, Fissurella, Chiton, 



